thE nursE is CAring For A CliEnt with ADult rEspirAtory DistrEss synDromEArDs). whAt is thE most likEly lABorAtory FinDing in thE EArly stAgEs oF this DisEAsE A、inCrEAsED CArBoxyhEmogloBin. B、DECrEAsED pArtiAl prEssurE oF ArtEriAl oxygEn (pAo2). C、inCrEAsED pArtiAl prEssurE oF ArtEriAl CArBon DioxiDE (pACo2). D、DECrEAsED BiCArBonAtE ( ).